package ptaTest4;

import java.util.Arrays;
import java.util.Scanner;

class PersonSortable implements Comparable<PersonSortable>{
	private String name;
	private int age;
	public PersonSortable(String name,int age){
		this.name=name;
		this.age=age;
	}	
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public String toString() {
		return  name+"-"+age;
	}
	@Override
	public int compareTo(PersonSortable o) {
		int x=this.name.compareTo(o.name);
		if(x!=0) return x;
		else return this.age-o.age;
	}
	
}

public class Test451 {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		PersonSortable[] test=new PersonSortable[n];
		for(int i=0;i<n;i++)
		{
			test[i]=new PersonSortable(sc.next(), sc.nextInt());
		}
		Arrays.sort(test);
		for(PersonSortable personSortable:test){
			System.out.println(personSortable);
		}
		System.out.println(Arrays.toString(PersonSortable.class.getInterfaces()));
        sc.close();
	}

}

